During the Covid I dropped a computer off 3 months...

During the Covid I dropped a computer off 3 months ago . I went to pick it up 3 different times closed I called and they said ya come in but closed, I brought them a laptop to fix and the never put the windows key in so the computer crashed now they are telling me the junked my $400 1 TB 8gig computer I have threatened tact messengers and can t even wright the language they yes but at the end of the day they kept a computer that was mine. Never gave a receipt nor said nothing. Took cask to avoid the tax man and are steeling for family s that need the computer for school work. I would not recommend and one to go there as they are theirs.