A very angry client

I keep on getting these never ending smses from MTN (e.g. get 300mb free......your airtime data bundle is finished......to get xtratime dial......etc) and I’m sooo annoyed by these. MTN has got no respect for their customers really,they even send these smses at 1am......really now? I FOR ONE DO NIT WANT TO RECEIVE SUCH SMSES AND WANT MTN TO REMOVE MY NAME FROM THEIR LIST OF SMS RECIPIENTS(if they have any). ARE THEY NOW THAT DESPERATE TO BE NOTICED?IM SICK AND TIRED OF THESE USELESS SMSES. If this doesn’t stop I WILL LEAVE THIS USELESS NETWORK PROVIDER,I GUESS IVE BEEN TOLERATING A LOT OF **** FROM THEM.