Totally agree with tony. This needs to be addressed and soon!
Yes, see if the Vet will take payments. Some offer an insurance you can apply for. See if they take Care Credit.
Have a relative that can help?
Hi. This is not something you can leave. Disc issues are extremely painful and, unless it is dealt with immediately, more damage will occur. Beg or borrow money from your family or friends, sell something to raise the cash or look up an animal charity to help. Also, ask the vet if they'll be happy for payments to be made by instalments. Anti-inflammatory drugs are likely to be needed as an interim measure, assuming the cause is a trauma.
However, there are many possible causes to this type of paralysis, including tick bites and nervous system disease. An accurate diagnosis is needed before any specific treatment can be suggested by your vet.
Tony