As a first step I'd contact the VFS Application Centre.

If that's not an easy option then here are some others:-

From Inside UK:-

UK Visas and Immigration contact centre
Telephone: 0300 123 2241
Textphone: 0800 389 8289
Monday to Thursday, 9am to 4.45pm
Friday, 9am to 4.30pm

Find out about call charges


From Philippines Telephone

Opening times: 8.00am - 4.00pm (Philippine time)

You can call us on:

00 44 1243 217 890

If you would prefer to dial a UK number direct please call:

00 44 1243 218 104

This is a paid service and there is a cost of £1.37 UK Sterling per minute in addition to your standard network charges. Please have a valid credit or debit card ready to process your payment. We can accept MasterCard credit and debit cards, and Visa credit and debit cards. You will not be charged until you are connected to an adviser. Calls may be recorded for training purposes. We are able to handle your calls in English.

There is also an online e-Mail Form available

https://ukvi-international.faq-help.com/

Ideally, any visa errors should be corrected prior to UK entry if possible