POOR CUSTOMER SERVICE!!

TERRIBLE service from Vodacom. Monwabiso from Retentions Dept was meant to call me regarding my home Internet 5G coverage and 3 days later i am yet to get an answer, Vodacom has blocked me from calling *** because i have tried getting hold of him. He wants to sell me a 5G router for Home internet but i mentioned that we do not have 5G coverage according to customer care and until today, he is still finding out whether this is an option. Can Vodacom please employ professional people that understands customer requirements and also those that will follow up with customers as promised!!