Further to this deal on new Spotify Premium accounts in the Philippines, they now offer 12 months for the price of 10.
Unlimited music, overseas roaming, offline listening, and no ads - only ~A$34 per year.
Looks like this offer applies in many countries, but this one's by far the cheapest.
EDIT: FYI, I've been using Spotify PH for a few months as a result of an earlier post on Ozb. It was pretty easy to set up and I did not need a VPN. I just googled for a free Filipino proxy, changed my settings and checked that my IP address was correct, then set up a new Paypal account in PH and used it to sign up for a new Spotify PH account. The whole process took about 10 minutes and cost nothing.
To set up Paypal in PH I did have to add an unused credit card, but I haven't used it as I've been topping up my Paypal PH account from my AU account (it's even cheaper to do this if you sell something on eBay) and am now on the 12 month plan. At the end of the 12 month plan it reverts to the normal monthly price. The next debit date now shows 12/4/18 (That's 4th Dec to you and me).
Remove the credit card from your Paypal account to prevent automatic debiting, and remember you cannot use that card again with your local Paypal account. (Tip: American Express cards are best for this because they will usually send you a replacement card for free!)
Spotify PH is exactly the same as the local version, except that the home page gives you Pinoy charts.
Search for the original PH Spotify post in the search bar. It's simple.