Dissapointing service

Billing is dissapointing. I am very disappointed with the service I have been receiving. I have been a loyal Vox customer for more than three years and currently pay R995 per month for my data line. Due to a change in my employer's payroll schedule, I now receive my salary on the 15th of each month instead of earlier in the month. I have informed Vox of this change and requested an arrangement to align my payment date with my salary date. Unfortunately, my data line continues to be suspended around the 3rd or 4th of every month and is only reactivated once payment is made on the 15th. This means that although I am paying the full monthly subscription fee, I only have access to my data service from approximately the 15th of one month until the 3rd or 4th of the next month. Effectively, I am paying for a full month while receiving only part of the service period. As a long-standing customer, I believe this situation is unfair.