Horrible Customer Service Coactivate

Debbie Coetzer was in touch with me about the return of my cellphone that was incorrect when upgrading my Vodacom contract. She arranged for the collection of the phone and was going to make sure that the account would be taken care of and keep me updated. She has not been in touch with me since 10 June and i have sent multiple emails for her to get back to me without success. Since they collected the phone my bill soured from R2200 to R10000. They keep making mistakes and take no responsibility.