If you pay for a replacement part, keep checking they have ordered it! Their online payment system does not sync with their other systems, so you pay for a service and then left waiting!! DO NOT USE DOMEX, if you value your time! Following their engineer's visit, a new part was required (new element). In order to progress the order they require payment upfront of the part, which is fine. I mentioned to Domex that we will pay for it now, so that they can order it asap;, which they acknowleged and mentioned that the part is out of stock and could take up to 10 days. We paid via the online link they sent and recieved confirmation of payment (around mid December). I then called up in the second week of January to check whether the part had arrived. The Domex Customer Service team said they had no idea that I had paid, because the online link does not sync with the ordering/ job system, whereas if you pay over the phone it does as they manually input.