Ava vet trip

Hi guys my name is Dani, my pups name Ava. About a month ago ava had a little lump on her chest and we haven't been able to take her to the vet due to nobody will see us without payment up front. As of now the lump had grown and she NEEEEEDS to be seen! And this is going to be a more than 1 vet visit thing and many tests because we don't know what is wrong it it will probably involve surgery. Its to the point wherr she does not want to go out and barley eat. This was our last option but at this point We really just need help getting our baby better ! Anything helps! Please and thank you for your time! If you cannot donate PLEASE share!