

Seller blocked me without replying, AITA??
I'm fully aware that I'm probably the AH here I just don't realise it because I suck with text communication.
I'm in the UK and wanted to buy this item from America wasn't getting paid until the 30th and asked for a reservation on this item which happened to be a really rare soft toy I've wanted since I was little. Tried to order it on the 4th day, and the stupid inpost locker was full. This has been an on and off issue for a while in the village so I said I'd try again later and asked if I could have a couple extra days reserved if it still wasn't working since it's fully out of my control.
Instead the seller decided to block me without replying, and now I'm never going to be able to buy this item because of that. I didn't even get a chance to try again on the last day.
Did I say something wrong? I'm genuinely asking because I have trouble communicating and reading tone over text, did what I said look rude at all?
EDIT: My friend is helping me buy the item <3 thankyou so much for the suggestions!!