Unhappy

I cannot understand the service I am getting Vodacom has incorrectly debited my account this month after promising a refund for non-service I sent an email twice and received no response, I have included the debit order reference: VODACOM *** I***, I am just not pleased with the service I am receiving and I have had constant concerns since the start of the relationship, please advise when I will receive the refund I was promised by email dated the 15 April and also when the sms messages and emails will stop in terms of installing fibre which i already have.