Vtr affecting again

HI

I have question regarding VTR as we started to print label through amazon and our rate was gone up to 100% but later on other side OTDR decreased to 30% because lack of scan by royal mail.

So one way score increase and other way decrease if we buy shipping via amazon our VTR will improve and OTDR will affect as lack of scan and if we buy shipping through c&d OTDR will improve but VTR will affect where to go.

But recently I printed RM24/48 through c&d and see royal mail uploading tracking id on amazon automatically with integration.

Does it will acceptable by amazon and improve our VTR if we buy shipping through c&d RM24/48 as royal mail updating tracking ID on amazon ?

THANKS