I also use the Expedia method. When entering from someplace close, like Hong Kong etc, I cancel after arrival in the Philippines. When entering on a long series of flights, like from the US, I cancel after checking into the boarding gate in the US. I have never been asked for it on arrival, only by the departure airline checkin agent.

No it is not.

 

I am on a tourist visa, so have to get a cheap through away ticket which serves @upon check in when being asked for. On arrival in the Phils it is exceptionally IM ask you to show.
As already said, any cheap one way ticket (preferably a promo if available) from Air Asia or Cebu Pacific will do. Another option is a more expensive ticket from i.c. Cathay Pacific that allow you to ask for refund, when you did visit Hong Kong. Singapore airlines will also have tickets like this.
The administration fee is around 25 euro or <30 US dollars.

 

onwardticket.com will rent you a ticket which they cancel after 24hrs the cost is $10 or a $15 for 48hrs. Worked for me when I had a trip to Cambodia this year

 

I used one of those ticket 'renting' agents, even though I knew there were many disappointed customers. I decided to take the relatively low-cost risk to see if it would be good for the future and so paid my $9.99 - I received NOTHING. Best avoided for sure.

 

I had not one problem with this service and had read of many others having success with it.

 

I think you may mean flyonward.com (onwardticket.com is a domain up for sale). If so, then the Trustpilot score is 1.3 out of 10, with 9% rating "excellent" and 91% "bad". From that I conclude that 9% received their tickets and 91% did not. You were one of the (minority) lucky ones and I was one of the (majority) unlucky ones. The statistics indicate that if you buy a ticket from them once a year for 10 years then you will receive it once only. Therefore the cost would be about $100 for ONE ticket. They have a refund policy but (surprise, surprise) it seems not to work.

If I sold a car to ten people and delivered to one only, I would be considered a scam artist. But I would make a lot of money that way - so flyonward.com seems a good business model for the owners but not for the customers.

 

I assume you have to pay for such a ticket with your credit card when doing the on line transaction. In case a ticket is not delivered you can complain @your credit card company to investigate and finally get a refund. But all this hassle and more not even worth to try it out considering the outcome of customers reviews with respect to their liability and performance.