I've been a long time OFX user (from 2015 to 2019) but today an OFX client associate told me: "I would suggest seeking an alternative foreign exchange provider who may be better able to assist you." (translation: "Don't Let The Door Hit You On The Way Out").
The reason for that was my reluctance to divulge personal information of a third party (names I mentioned in a reference notes field) that was unrelated to the task of identifying money for a particular transfer. OFX asked for that information without any explanation.
The result of that interaction was not only that OFX cancelled the transfer, they also decided that they don't longer want me as a customer and revoked my ability to create any new transfers.
So from my initial email wanting to ensure that the money I sent was correctly matched to the transfer I opened, it only took a couple of emails to become a non-customer.
Not only do I find this astonishingly unprofessional for a financial services company, it also suggests that OFX doesn't really seem to care about individual customers, if they are so quick to get rid of a longtime one...
If you do decide to become an OFX customer, keep in mind that this relationship might quickly come to an end.
The upside of this whole endevaour, which (as you can tell) left a rather bad taste in my mouth, is the fact that I found a different provider (transferwise.com if anyone is interested) with (incidentally) *much* better rates.
So maybe I should be thankful for the OFX customer service representative suggesting I go look for other foreign exchange providers.