WORST SERVICE!

I baught R2000 electricity on my FNB app on 15 June 2018 and almost immediatly received an sms from FNB that the transaction was unsuccessfull and the money will be refunded to my account. After 3 days I phoned the inquiry number on the sms as it was not refunded. The lady checked and said the money will reflect before 12 the next day, still nothing, phoned again this time I was told it will take 24 to 48 working hours and are calculated 8 hours per working day, 3-6 working days. Today is already the 7th working day and still nothing, phoned again, this time I was told that there is no such transaction on that day? Phoned again, now I was told that they received an email from the service provider that the money will reflect back in my account latest today. This is unexceptable and I am really wondering if I should still bank with FNB as a diffirent story everyday. The sms came from FNB but now they say they are just the 3rd party, passing the blame. Everytine I phoned it cost me nothing less than R20, so now I have spend close to R100 on airtine requiering about my money and still no answer and all they say is sorry! I am furious! Also not receiving proof of payments and it states that you will pay for each proof send. So disappointed in FNB, don't know what happened to your once excellent service!