No Funds available due to Momentums error

I have the custom plan with momentum with a health saver. March 2020 i used over R1000 of my available funds, i then still had more than R1000 available, keeping in mind that excludes my monthly for contribution which still needed to be added to the balance i had available. today 02/04 i urgently needed to take my daughter to the doctor , when i got there they did not want to help me due to no funds available, how embarrassing, i then paid cash.i then checked my statement & there should be funds. when i asked online agent i was told there is a IT issue., how does this help me when i could not make use of this service,no communication was sent out as well & how will i now get my cash back & my correct amount showing on my health saver.