When i used to work for nails inc we were in house trained to use bio sculpture (3 week manicure) and we were taught to buff the nail with quiet a hard grit file! So no wonder her nails were trashed! Also we were told you cant infill bio so a soak off and new set every time, which just meant more money for them!! But meant the clients nails were dried out and bio is so hard to remove, much easier after a fill! It was my first job out of college and inexperienced, knowing what i know now that company is a joke! Try and keep this client on shellac