Debt Order off account twice

I have an extended warranty plan with Toyota. My debt order is scheduled to go off on the 28th of every month.<br> My stop order did go off on the 29th April2015. Additional to the stop order I had another go off on the 2nd May2015<br> Being double debited, I had then called the call centre/ service provider to inform them of their error.<br> Upon calling the service provider on the 4th May2015 the consultant does advise me it was an administrative issue. I was told I would have the issue reversed and within 28Hrs have my money in my account. I then call the centre again on the 5th May2015 speaking to a consultant asking her for feedback on the matter. She is obviously very clueless to the issue & puts me on hold for 8mins or so.<br> She then tells me to call back on the 6th May2015 if no money is returned to my account. <br> I'm obviously furious at the this point, not only am I following up on their fault but I'm running around in my busy working schedule sitting on the phone with ridiculous calls when actually an agent could actually call me back with the necessary updates. I then call the agent again... This time coming to a very helpful agent who actually does call me back