Addon bought for me instead of someone else, dev deson't respond.

Hi,

So basically, someone asked me to buy a script for him. I typed his steamID on the page but it didn't work and I got the script instead. I contacted the dev to transfer the script to him, but he didn't respond (Contacted 3 days ago, his profile says he was connected tooday). Do you have any solution ? I tried to add him on steam but it says his friendlist is full.

Here is the message I sent him :

Hi,So tooday a friend asked me to buy your script "Steam Group Rewards" for him. I entered his steamID on the page but it appear that the script was bought for me instead of him.Could you please transfer the script to him ? I did not download the script.His steamID : STEAM_0:0:177497316His steam page : http://steamcommunity.com/id/FalkioThanks for your anwser and sorry for any inconveniance.PS : I sent you a support ticket but he told me to send you a PM because you would possibly not anwser the ticket. Sorry if that caused any trouble...

The script is Steam Group Rewards : https://www.gmodstore.com/scripts/view/84 Dev : https://www.gmodstore.com/users/view/76561197975880585

Thanks for any answers.