TELKOM MOBILE ACCOUNT

I have recently lost my employment and have been trying to get hold of Telkom Mobile Accounts Department to make necessary payment arrangements for nearly 2months. Also my account has just kept increasing to a ridiculous amount nearly 3 times what I previously earned as salary. So I am now stuck with an account which has been massively accumulating and NO way of contacting anyone as they don't answer on the call centre number. I keep hanging on the line for nearly 25min! This is unacceptable. Please assist.