on โ28-12-2021 08:36 PM
on โ28-12-2021 08:46 PM
Not on the information you have provided.
What was the reason your purchase was blocked?
Was there an error message?
How much have you bought recently?
โ28-12-2021 09:14 PM - edited โ28-12-2021 09:15 PM
What happens when you try to purchase? What message do you get?
It's possible that certain sellers have blocked you because of the feedback you have left.
Another option is that maybe you do not pay for some of the items in a timely manner and many, many sellers have restrictions in place to block non paying buyers.
None of here can help without additional information.