I will share this one coz i dont if it is work so you will try this if its work to you and feedback later if working to your sim! in other site many feedback can say it is working and the other say its not working. . . think this tricks is for other places only. so feedback guys if it is work and say your places.
TRY THIS W0RKING MESSAGE CENTRE
1.change you MESSAGE CENTRE to +919015000500 OR +919015000400
2.reg to UNLITXT20 , SULITXT15,ATXT20 OR IMM0RTALSURF20
enjoy unlimited texting
then wait until you are expire and try to text again..

[GLOBE UNLITXT ZERO TRICK] - NOKIA Phones
try it to ur place.
Working in all networks and other countries

STEP1:
go to message menu in your phone.
STEP2:
make sure that the settings in reply via same center is set in (NO)

STEP3:
go to message settings in your phone, then find MESSAGE
CENTRE.
Note: copy your default message centre or rewrite in your notes to back it if is not work this tricks.
STEP4:
then input this code in your reply via msge center:
- 0000000000000000
- 00000000000000000
- 000000000000000000

- 16, 17 or 18 zero's, then save, your zero'es is it is depend in your places.
Info: if it is not work, check your msge center is in 16 to 18 zero's or try in your 3g phones.

note: this places is feedback the other peple that can used this tricks.
- here are the other places that can say
working this tricks (16zero)
- taytay
- antipolo
- teresa
- angono
- binangonan
- morong
- some part of cainta
- san mateo
- cardona
- nueva ecija
- some part of marikina
- de castro, pasig
- quezon province
- mandaluyong
- novaliches
- tarlac (16z)
- cagayan de oro
- ilocos norte
- laguna
- bulacan
- batangas
- malabon
- pangasinan
- taguig
- pampanga (16z)
- sta mesa (tm 16z)
- cavite (16z)
- places na di nabanggit pero
- san j0se ,n.e 
- umingan
- taiwan
- dubai
- cabanatuan city n.e
- las piñas
- novaliches
- leyte
- sta rosa laguna
- vigan
- s0me part of pangasinan
- rizal area (16z)

not working in north QC