Worst service experienced

They are taking our money, but not loading the units of electricity. The payment has been made a week ago, and the funds should reflect at the latest after 2 days. Even after the proof of payment was sent thrice (to the email address they supp****), they still did not load the tokens. After I called twice today (they did not call back as promised after my first call this morning), they still haven't loaded the electricity. If we lose tenants due to them, I will be taking this further. Thank you