Blue label/Refund

The above Company in 2024 August or September promoted cell phones on telemarketing the Contract we took was for R499.00 per month but before the gadget was delivered my daughter bought a phone for me cash..Blue label Contract was canceled lThe cellphone returned but they still deducted amount R*** having been calling them to stop sending them my banking statements but couldn't until they did stop in 2025 November unfortunately they don't want to refund all money deducted only R1400 as Iam told..This is a very serious violation of customer rights. Spending lot of money phoning then since 2024 until 2025..