some buyers are sooo annoying!!

so this girl was sending me offers for one of my items which i declined (since i had already discounted the item a lot). i just let her know that if shes still interested i could ship that day and she just left the message on seen so i thought she changed her mind which is fine idc. this was early in the morning and she read it straight away and didnt decide to buy until hours later when the post office had already closed😭so then i shipped it the next day and once it got to her she waited until the literal last hour to pick it up i actually thought she wasnt gonna pick it up at all i had to send her a polite message and tell her i got an email saying it would be sent back to me if she didnt pick it up. she just ignored that ig and she got it and now i bet she wont even bother clicking the everythings okay thing so i can get my money sooner bc its almost been the 2 days anyway😭😭idk im not trying to be rude bc im grateful for every sale but some buyers are just so unresponsive its annoying as a seller. especially when u hear of all the vinted horror stories!