I was alarmed to see that approximately £200 had disappeared from my balance. My advertising is paid on the 2nd of the month and I could find no other transaction for that amount. After about 10 minutes it reappeared. Where on Earth did it go?

Also, I have noticed that my balance on the Amazon Seller app on my phone is always about £5 less than the balance on the Seller Central website on my laptop. It's the same account so why should the balance be different?