Worst customer service - no communication

I placed an order on One Day Only, the order stated that there was a payment error on the site however the payment did go through on my Mobicred account. I emailed One day Only regarding the matter and they were very unhelpful indicating I should sort the matter out with Mobicred. I emailed Mobicred customer service the same day (1 September 2022), to no avail, customer service hasn't even bothered to respond to my email yet as to date. After a couple of days I phoned the customer service line, where they also take about 10 to 15 min to pick up a phone, the matter was escalate to the relative department. I had to phone again a couple of days after that, due to the fact that no one once again bothered to get back to me. As to date nobody has assisted me regarding the unsuccessful payment on the site but the payment was deducted from my account. This is the worst service. I am strongly thinking about handing over this company to the Ombudsman, this is unacceptable. If you cannot do your job and assist customers, please close your doors. If this small problem is unsolvable and cannot even be communicated properly, I don't even want to know the struggle it is going to be settling my account.