Poor Assisstance from British Airways Executive Club Call Centre w r t Avios points

Trying to covert my Standard Bank UCount Rewards points to Avios points before expiry date 30/11/2020. Did 3 conversions thro Standard Bank Uncount Dept. Last week. BA Call Centre Agents cannot find reason why conversion can't take place. They instead encourage u to buy Avios on BA website in dollars or to book a flight or use car hire etc. Financial gain motives. BA call Centre Agents refuse to give you an email address to escalate issue so you can type your complaint in detail. & Refuse to let you speak to a Team Leader. BA you are supposed to be first world. Act it. How does this Call Centre operate & undertake Quality Assurance..... Shocking.....