Outstanding service yet again

I purchased a satnav system for my 2012 Jeep Wrangler two years ago. I picked up a software glitch or so I thought. Sean was contacted and he immediately sourced a update and came from Stellenbosch to Gordons Bay to install. It was found that in fact my SD card was ******* and infact had no problems with system. Never less Sean updated firmware, maps etc and for extra measure installed maps directly onto hard drive thereby should i have a faulty SD card again my maps will not be effected. All this service two years later and NO Charge. Where do you get this kind of after market backup. Clearly on at the NAvshop by owner Sean. Thankyou really appreciated. Regards warren mills