Cannot update apps or access to app store

Hi,

I've got the following problem:

- I had another apple id linked to a gmail account

- For security reasons I had to delete permanently the gmail account

- I was able to continue using my apple id with the linked email account (big mistake)

- Now I seems that somebody created a gmail account with the same id as my previous deleted email account. And it seems he/she is using it as apple id.

- Result I cannot access to app store or update my apps.

Any suggestion? hint? to resolve this?

Thanks,