I refused to use the factory repair kit - no confidence it would work and knew it would ruin the tyre. I was lucky in that i was able to reinflate and drive for a few miles with a very slow puncture to my trusted tyre depot for a repair.

You could call Emergancy Service, but the RAC will only be able to get you to an OPC (tomorrow morning) on a flat back; at which point you are pretty well forced to buy the replacment tyre from them.

You might find that only the OPC can supply a tyre at short notice anyway,in which case use the service you are paying for.