I am a long standing BA Customer that has held a BA Silver or Gold card for the last 10 years. I have tried for the last 2 months (literally) to add an infant to a booking made with miles. I will spare you all the details but suffice to say that after 9 phone calls to the Executive Club in the US (all with a waiting time of at least 10 minutes) and two email to Customer service, BA still has not been able to add him to the booking despite me having provided a credit card to pay the tax. Today I called again the Executive Club line and after 40 minutes on the phone I was told by the Executive Club representative that they could not add the infant . My travel is now imminent and I am not sure what to do.