Poor service just to change debit order date

<p>During Feb 2017, I called ford credit in order to change me debit order date details from the 25th to the 15th of each, spoke to a nice lady over the phone and she said it was done, then on the 15th the debit order didnt go through, so I thought it would start on the 15th of March, then on the 25th of feb, there it goes through and bounces, so I contact ford credit for the days afterwards and being putting on hold for ever, I gave up, then on the 14th of March a man from the collections department phones me and I explained my issue to him and we arrange to catch up the amount I am now in arrears with and my normal debit order to go off on the 15th of April and now today I phoned through again just to double check that it has been changed and eventually I get put through to a man in the collections department called "Freddy" he told me that it hasnt been change and I how I have to contact some other department in order to change this and arrange that my contract gets extended so that I can fix this arrears, Why must I go through so much effort just to change the date of my debit orders and I have to now phone through just to check that its done and still not changed and now its days way that it will go through again in which it will bounce yet again, why must I suffer because of this I mean come on... I will never, ever go through ford credit again, I need this fix asap as this is pathetic </p>