HI and Welcome to the forum, you might want to have a look at the following FAQ which explain where everything is
Welcome to Benefits and Work In case you are not aware, your real name appears to be showing in the forum, if you want to change this then follow the instructions in the following FAQ
My full name is showing, how can I stop it?
PIP is not an income-related benefit, it doesn't matter what your joint income is or how much you, or any partner, have in the bank.
If you have further questions regarding a PIP claim, please reply to this message and we will do our best to help. You will find it easily in future if you bookmark/favourite it on your web browser now