Disabled transport access in London

I don't visit central London very often,  but my son lives in Shepperton and I do have to go in occasionally.  My last trip was for my daughter in laws hen do on June 7 th for a Duck boat river trip from Waterloo and tea at a hotel in Soho. We travelled to Paddington from Didcot Parkway,  no lifts were working and I realised I couldn't manage the escalators.  We asked staff for help on getting to Waterloo without the escalators and were directed to the taxi ranks.  That day cost us £ 60 for 3 taxi fares. I wouldnt attempt it now again. My daughter travels into Paddington regularly and says she frequently meets people who ask her help.  i sincerely wish they would  train their staff. Frequent  visitors may find it easier than occasional visitors.