Edcon Thank you points

I normally check my thank you points online. Recently around April, i checked my points, and they were around 13 325. Then on the 9th of May 2018 when i logged in, i found 0 points.

May 03 2018 I've put petrol and used my Thank you card at the petrol station. Those points didn't reflect. Again on May 10 2018 i swiped my Thank you card at the petrol station.

To break it down - April 2018 i had "13 325" Thank you points - May 03 2018 i put R 400 petrol and swiped my Thank you card - May 09 2018 my Thank you points were "0" - May 10 2018 i put R 500 petrol and swiped my Thank you card - May 14 2018 i log into my account and i find "5 095" Thank you points In my confusion, what happened to my 13 325 Thank you points that i currently had, my trust in shopping and swiping using my Thank you card just to loose them?

I've sent an Email, they said they will investigate this matter to the Loyalty Rewards Management Team, but still nothing and no updates.

Ref number: ********** 1452/GO