Recall from vauxhall coolant fault on astra 2010

My vauxhall astra 1398 sri turbo 2010 has been recalled twice in past 6 months to fix a fault relating to the coolant they said it is now sorted but have had to call rac 3 times due to problem relating to coolant in last report the faults are blown pipes blown thermostats and showed the head gasket has blown took into vauxhalls but have said nothing to do wuth recall and need to strip engine to find underlining cause has anybody else heard of this having to happen when rac report has stated it all probably down to recalls been made??
Thanks......