Lost Thank U points

I've noticed in January 2018 that I've lost 25 955 Thank U points, I took this up with your Customer Services @ Cape Gate branch. They lodge a query with the call centre (ref no ********** 0528/C70) and promised me that somebody will contact me in 48 hours - a week later and still nobody contacted me. By the way, your Thank U department's tel no ( ********** 165) is not working.