if you just recently received this via donation or via BTA you can try sending a message to support@infinitymu.net cause same thing happened to me...my SMOK had the wrong JOH and resistant did changed it...
If you donated the item within 7 days - mail support@infinitymu.net or try with his skype resistant.bg to ask a change of yellow option.
If 7 days passed already,upgrade it via webshop - 2000 gold credits per yellow option - Go to Webshop - click on warehouse where you item is,click upgrade and then you can change the yellow option.