Grandma

I am extremely worried and would welcome any advice.

As many of you know I look after my elderly grandma and with the help of social services I have now managed to put carers in place who see her three time every day. At the minute she is quite poorly and unable to weight bear at all so relying on me and carers for everything. It was my grandsons birthday yesterday so I couldn't go to grandmas but spoke to her last night and she told me that one of the carers has put a "nappy" on her and told her that if she needs the toilet she should just "go" in the nappy. She was extremely upset and told me this morning (I was there on my way to work) that she would hold it in all day until this evening when I can get back. I told her that she couldn't do that as she would make herself even more ill and it might be late before I can get there (Ihave the grandchildren straight from work on a Monday so can only get there once DH gets in from work etc.) but she said that the carer said she couldn't/wouldn't take her to the toilet so it's tough. Grandma very distressed on the phone and telling me that she is frightened of the carer.

I just don't know what to do. I appreciate it is a very hard job to look after the elderly (I love her and she drives me mad sometimes) but I hate the thought of her being treat like this. On the other hand will saying something to the carers make them worse? I'm at my wits end.