Sorry, my fault.
Smelling too many chemicals at work.
In that case, when you surrender, just include a simple covering letter explaining the situation, and you will be fine. Do not write a long story, just a brief explanation.
Do the same with OCI application. When you go to submit OCI application, make sure you have all your child's documents, and all your documents, original and phtocopies. You never know what HCI might ask. Might be couple of pounds wasted on photocopies, but its worth spending couple of pounds to avoid another visit to HCI.