Unhappy customer

Dear MTN Customer Service,

I have been an MTN customer for many years, and I am writing to raise a concern about my airtime balance.

Over a long period, I have noticed that airtime purchased disappears overnight, even when I have not used it. For example, I purchase R3 airtime but only R2.67 reflects on my balance. I also buy bundles and minutes, yet my remaining airtime of R11.00 is fully depleted within two days without any usage on my part.

This issue has persisted for years and is now worsening. I recently purchased credit and found the balance was gone immediately without being used.

I value MTN as my service provider, but I cannot continue paying for airtime that is deducted without explanation.