They dont respect subscriptio payment

I have payed a year subscription on dec 2016 its February 2017 and I realize they cancel my premium features after losing some contacts information. They never notify me and support have not responded why. There is no way to see your payment history on their site, and even I have my receipt nobody answer my concern. Dont lose your money.

Gerardo Rocha r about Contacts+ | Address Book, v4.11.2