FNB - prepaid electricity

Good day

I purchased a month's worth of electricity from FNB this morning. Spoke to 2 consultants. On Tuesday I bought 2 vouchers seperately because there was a delay. That I understand. On the app, it asks you if you want to buy the last purchase. I copied and pasted that number and choose a flexible amount. I confirmed this meter number. There was a delay in sending the token. When I received it, it was another meter's number with the token. I am not asking for a refund or a reversal. I want the units to be corrected to link to the correct meter number. I cannot do screenshots, because the app does not allow it. Please assist.