Thanks for all of you guys for the valuable replies!

Iniuria, I'm not reached the limit, just "therefore approaching" it. But, it will be restricted in this case, too. And did you received any emails from them under this period? Because, I did not received anything.

So, If I don't want to use PayPal, I'm just simple not sending the documents, and leave it like Joomlaz suggested. Although, it won't be deleted. Hope, there is not any fees or charges because of inactivity.