How can I resolve a blocked account issue?

Hi Dears

My shopify just blocked and my shop stoped to work.I just change my billig credit card information which after i change it it happened for my account. is any one knows how i can solve this problem?

@5xtrade

sorry for issue

please contact Shopify help center

i contact them but it takes too lng any one has experience in these issues?? i just opened my store and did not make any purchase which is happened for me