Disaster Well said. I sent my calculator in at the beginning of January.. still have not been paid. They have the wrong paypal written down. They keep saying its sent. Sent to where?? U have the wrong pay pal.. I can't speak to anyone on the phone. I have called. No one answers. I leave voice mails. This is in a small building inside of another company. I have emailed and emailed nothing but, hey send us ur device.. They have my device now what. Seems like maybe this is a scam. I had a Texas t 84 now. I want to speak to a live human please

Easy and quick The process was very easy. Topcalcs send the prepaid mailing label and once they received the calculators the review process is very fast. They adjusted the price but I think that is fair. I recommend them.

I got the highest value available… I got the highest value available online for my almost new calculator. The shipping process was so easy, everything went so smoothly, simply awesome!

there were multiple calculators i had… there were multiple calculators i had that were not broken and worked but they marked them as not working calculators and payed me less

Expert Equipment for sale.I make custom… Expert Equipment for sale.I make custom use calculations for various purposes.In this instance,a reference manual would've been cool!