epson ep 50v license unsupported printer model

[epson ep 50v license unsupported printer model]

i have bought 1 Activation Keys for epson px-50v printer, but the license software currently does not support this printer, can I change it to Activation Keys for epson c5210 printer, please help me soon,
I have sent a support request to you for a long time but no help

[epson ep 50v license unsupported printer model]

I bought 1 Activation Keys for epson ep 50v, but the license is wrong, can you help me

 

[epson ep808 chipless error]

I buy 5 Activation Key for making Epson EP-808A Chipless, but only 1 key works, the remaining 4 keys can't work, thanks

my order code: #19140311