All I can say is to try to dig deeper into the issue to try to know how to manage a similar situation in the future. If it is too much of a tech problem for your company to deal with, then you just forget about this kind of account for the time being, although you should push your company to improve its IT capabilities and be able to compete in the future. But at least you will not waste your time and give a bad image to your client.
On another page, I love that nicely customized slice of bread on your breakfast :)
I paid extra for the customised bread, not too much, but enough. 😉