Airbags Deployed At 4mph! Help!

I've just clipped the kirb driving around the corner at my brothers house at approx 3-4 mph and had to make it tight due to another vehicle coming in the other direction. The airbags deployed and the seatbelts have locked. Fortunately my other brother was behind me and also witnessed along with my family that were in my car. My insurance company won't help, and the company at sold me the car just a few weeks ago miss-sold me breakdown cover as I had specifically asked them if I was fully covered for breakdown., I am not. I cannot drive the car anywhere as there are no functioning seat belts now and am 460miles from home as I'm visiting family in Scotland. My sister and I have burns to our chest and my face. I need to get back to reading tomorrow due to work commitments and need at least the seatbelts to function so that I may drive. There is no damage to the car itself as the kirb was merely touched.