I have recently gone through all this process with my girlfriend. we were lucky enough that I was able to send her enough money to keep in her bank account while the visa processed and then she changed it into UK pounds and brought it back to me when she arrived. If you are unable to do this I would recommend that your sponsor send in as much information as possible about their finances, including a letter from their job stating how much they earn and 3 months bank statements. Also, show evidence of where you will be staying whether that be booking confirmations for hotels or your sponsors house deeds or tenancy agreement (if they rent). You can't provide too much information with these applications. Bombard them with so much information they have no choice but to approve it. I kept a list of every piece of evidence I sent in for my girlfriends visit visa which I could send to you if you like? Her application was successful and she visited me in July for 2 weeks. The visa is still valid until the end of Novemeber and so she is back next week.

Also, try not to worry. Over 90% of visit visas are now approved for Filipino's travelling to UK. I'm sure you will be fine.