Any help of advice would be greatly received.

Booked family to fly LGW-DOH-AKL-WLG return with Qatar Airways. LGW to AKL is two QR flights. AKL to WLG is Jestar operated.

I thought (now stupidly) at time of booking could add unborn infant with first name Baby and then name correct. Or if worst comes to worst add new infant to adult 2 in booking and infant 1 is a no show...

However QR customer services cannot correct at all. Keep stating that as another airline involved it prevents them. Cant even remove infant or add new infant. If it was all QR operated apparently no problem. its the JQ leg that causes the problem. Only solution they offer is cancel and rebook but that's a hefty cost (£1.5k Inc. ticket price increase & fees) as according to them cancelation is adult ticket not just infant.

Just doesn't make sense.

Any ideas?