OFX

I used OFX for over a million dollars of my company's forex transfers for just over a year.

The customer dis-service was so dire that I thought it easiest to illustrate with one example:
A member of their customer dis-service team was clearly not trained and I have my doubts about their suitability for such a role. After finally managing to get transferred to her manager, my request to ask for the call's recording to be reviewed was met with a 'no' by Vani.
I escalated this to a more senior member of staff called Ryan. Rather than addressing their customer dis-service failure, Ryan said that he would review my call, and then failed to.
Ryan then went on to accuse me as having had a 'derogatory manner'. When I asked Ryan to substantiate, he failed to. I embrace constructive criticism on my own performance and that of my team. There's nothing we can do with general accusations, especially when the accuser is given the chance to substantiate themselves and then fails to. Unprofessional to the extreme.

System failures are never rectified and I doubt ever investigated. Not one of my internal transfers (client payments) ever triggered an auto email from OFX. I reported this for about a year on and off, and eventually gave up.

Tried to open an account, had to submit confidential information about designs and business partners. 3 month waisted time, there was no proper explanation why they wouldn't open an account, after submitting for 3 month documentations they said they can't open an account because I am not telling them who the name of the investor of my business partners company is. This is quite shocking, don't even try to contact them use Wise for instance, they very helpful and not require illegal information. It is also very interesting to see, every time if some write a bad review, which is by the way a lot doesn't matter what platform, 3-4 very positive reviews follow, so they actually writing their own reviews, saw the same on trustpilot and this is illegal too. They always answer on bad reviews and give the expectation a more specialised supervisor will sort out this problem after you emailed them, but this is another trick, supervisor phones person who you were dealing with and they tell you on the phone it is not possible, big scammers

The real exchange rate when you place the transfer is much worse than the rate advertised on OFX front page. This is simply dishonest practice. Stay away from this company.