djing blue tooth speakers

I bought them on Amazon for 135.00 brand new last month now a bissness partner offered me a 500.00 brand new one never opened for 80.00 1st come base so I couldn't refuse a 500.00 offer like that so I got it and now I'm seeing my 135.00 one for 80.00 flat you can even macth compre it on amazon to see for yourself is sold at 135.00 and I have repites to prove it to