Urgent - Visitor Parking Permits

Hello I am new to the area and live on St Ann's Road in Salisbury Mansions. I have a workman over and I wasn't aware he needed a visitors parking permit to park his van outside for a couple of days (I thought they would have had some kind of trade permit) 

I wondered if anyone had any spare permits that I could buy from them for him please.

My email is wasifilyas@gmail.com and mobile number is 07878745816

Please let me know and I will come and collect asap

Thanks

Wasif