Steve, sorry to hear of your plight, I would give the garage some pressure to get it back on the road asap.
Someone bumped into my van (Berlingo) last Thursday, damaged front wing, bumper, bonnet and drivers headlight. I phoned my insurance, who told me which garage to take it to, they gave me a Vauxhall Vivaro, fully ply lined with cargo racking, told me mine would be ready by 24th, got a phone call today (20th) all ready to pick up, and it's been valeted and washed as well!!
But I've taken a fancy to the Vivaro, the space inside was huge compared to the Berlingo and a lovely vehicle to drive as well. I'm tempted to upgrade mine now.