I really do not understand P&O right now. We were due to go on Britannia on Sunday, but today I have tested positive for Covid. I called customer services and they informed me that they would not let me travel. This was not a surprise. I have just received a cancellation invoice and P&O are keeping nearly all the money I have paid... I am so upset. We have 3 other cruises already booked which I am now going to cancel. I did not want to cancel my holiday, but am not allowed to travel and have been penalised for this ...