Unable to get through to DSTV to query debit order

Afternoon I have tried call Dstv Umhlanga for over hour... Just ring & then call cut off

I need to query debit order for my mother-in-law as she thinks you billed her double for this month.. she had & new decoder activated onto her name & old one was deactivated... She needs to know what Debit of a amount of R832.10 was for