Shocking Service - Rude

Good Day

I know MTN are Useless but not in my wildest Dream would i ever be told i am lying about my phone. I called the HVRC (NOt High Value at all) to be put on Hold for 10 min just for the Supervisor or manager whatever he was to tell me that they Reply to email and that the Admin Department doesnt have a Contact Number. You are a cellphone provider yet you have no contact details. ***. I want a complete Refund and i want answer From Edith and Muhamaad. After they Said on Monday that i will get Answers on Friday Morning. Well Look it is the Afternoon And Still Nothing. I have been a valuable Client for 10 Years and you think when you send your Phone off to get fix it would come back...... FIXED but no Not MTN it is broken again After 2 month i Want EDITH and MUHAMAAD to Reply to me or You know what. All hell wwill break. I Want my Refund YOU LYING MONEY *****ING **** Service Provider