I've been pleasantly surprised this week by some unexpected progress on our sons multiple broken chairs.
A man in a van, from wheelchair services arrived unannounced to fix his wheelchair footrest - it's been replaced with a second hand one from a wheelchair no longer needed. It isn't perfect but it's a lot better than it was, and it will get him through to the proper replacement being re-assessed etc.
Another man in a different van, also rang us up to see if we were around so that he could alter his postural support/drainage chair - for this we dropped everything and made ourselves available. He did the alterations his previous boss had assured us were impossible in about an hour. There may now be another problem with the chair due to the alteration, but it works and he's comfortable in it.
His toilet chair simply needs a replacement part for the broken bit.
It is still broken.
Two out of three isn't too bad.