BREAKING POPI ACT - SPAM CLIENT WITH CALLS AND MESSAGES

I bought couch covers from Home Choice in the beginning of the year. I had to give them my number according to them "to let me now when my parcel arrive". I stated it CLEARLLY that I DO NOT want to be called for any marketing... but they assured me that it is only for the parcel. Since I received my goods, they NEVER STOP calling me... When I block one number, they just call me from another... I receive about 8 messages on my phone EVERY DAY...I receive not less than 5 calls per day... I told them to remove my number from their data base, but it just keep going on.... I am DESPERATE to GET RID of this people..... They totally break the Popi Act to spam me with calls and messages, specially if I told them to remove my number from their database... They were ONLY supposed to use my number to call me for the parcel.... NOT TO SPAM ME!!!