Retentions department failure to call client

Good day<br> <br> I am very upset as to I have sent an email to your retentions department on Monday to match a deal for me because I am due for an upgrade. Up until now that email has not been read or even a reply. If this is the attitude that you give clients after been a client of vodacom for 10 years then I might as well as cancel my contract and take it with another competitor of yours.<br> <br> Thank you