NO INCOMING EMAILS AND NO RESOLUTION FROM TELKOM JUST FRUSTRATION

Telkom's systems are useless! Have not been receiving emails for nearly 2 weeks after my email address was randomly deactivated. Numerous phone calls followed by hours wasted at our local Telkom shop trying to sort the issue. The guys in the front office have gone out of their way to attempt to solve the problem and have tried everything including sending through escalation after escalation but nothing gets resolved and even they are now stumped as to why it's not working, especially as I can send emails. How can an email address that has been in use for nearly 10 years just suddenly be deactivated. They expect me to pay my bill on time but can't solve a problem timeously when it's from their side. Am furious but don't know what else to do!