Chargeback

Hi all there are many questions about the chargeback.
So first you can charback maximally payment 45 days old.(I heard)
When u charge for example silks to 10 different accounts in 60 to 1 day ago and give CHBack only on payments from one acount, bann will get all accounts ever charged from that card?Only that account that was charged back or just those that were charged in 45th to the last day? Thx for answers

U can charge back any time u want i Charge back a Acc like 2 years old 80$ US back xD and BANNED my acc
EDIT:
I LOVE THIS GUY T-T

and will they bann all chars ever been charged from that paypal? couse i charged to many friends and dont want them to get bann and want chargeback only my char