VTR below 95% do i need to be worried

Ok so like many others i have recently had to buy a printer as the majority of things i sent were letter size and could no longer use the stamps/franking option.
This has worked fine for untracked items.
For tracked items i still buy at the post office. all 1st class signed for.

currently my VTR has dropped to 85%
as of the 91 non exempt items only 78 have a Valid tracking number.
This is of course nonsense i have checked the 13 numbers on the report and all are valid numbers. The problem is Royal Mail are not scanning at the delivery point, although they are being scanned at the post office when posted.

I thought i read somewhere not to worry as these are checked again before an account is deactivated. But i have just had an email from Amazon.

So what im really wondering is are the majority of people which the same problem also getting this email and have had no further issues or do i need to be concerned?

Hello,

We have identified that your Valid Tracking Rate for seller-fulfilled orders in select categories has dropped below the 95% requirement. If your Valid Tracking Rate continues to be below 95%, we may remove the listings for your seller-fulfilled items in the affected categories on Amazon.co.uk.

Why did I receive this message?

We have observed that you have provided valid tracking numbers for less than 95% of your seller-fulfilled orders in select categories. Sellers must provide valid tracking numbers for at least 95% of their shipments with integrated delivery service providers in all categories. For more information on Amazon policy on this topic, go to “Valid Tracking Rate (VTR)”:

https://sellercentral-europe.amazon.com/gp/help/G201817070

We’re here to help

If you have questions about this policy or your account, please contact Selling Partner Support:

https://sellercentral-europe.amazon.com/cu/contact-us

What can I do to avoid removal of my listings for seller-fulfilled items?

Please ensure that you no longer violate the Valid Tracking Rate policy. We recommend that you review your recent untracked shipments and make a plan to improve your performance. You can also purchase postage through Amazon Buy Shipping service, which automatically confirms shipment and provides tracking for your orders.

If you ship from China, you are required to use a delivery service provider that is delivery-track-integrated with Amazon for all items purchased on Amazon.co.uk; and

· For all orders with a value below 5 GBP, including delivery charges, use a tracked delivery method that provides at least one carrier scan;
· For all packages with a value of equal to or above 5 GBP, including delivery charges, use a fully tracked delivery method that provides at least two scans (including a delivery scan/attempt).
You do not need to submit a plan of action to us at this time.
Has this message been sent in error?
We verify tracking numbers before suspending any offers. If you believe that you may be exempt from this enforcement, go to “Valid Tracking Rate FAQs”:
https://sellercentral.amazon.co.uk/gp/help/201817070
For further questions, you can contact Selling Partner Support.
You can view your account performance at https://sellercentral-europe.amazon.com/performance/dashboard?ref=ah_em_op or by selecting “Account Health” on the home screen of the Amazon Seller app on your iOS or Android device. The “Account Health” page shows how well your account is performing against the performance metrics and policies required to sell on Amazon.
– Download Android App at https://play.google.com/store/apps/details?id=com.amazon.sellermobile.android&hl=en_GB.
Sincerely,
Seller Performance Team
Amazon.co.uk
http://www.amazon.co.uk