I need your opinion/Advice; Employer Refused to give me my last pay

Problem/Goal: I want to make sure na may laban ako sa dole if ever.

I used to work po sa isang photo studio, 2 employees lang.

After at least 8 months of working there, I decided to resign (last Nov 13) and I want to do so immediately (Nov 19) so i told them. Nag pasa po ako resignation and nagdahilan nalang ako na may iba na kong work and I asked if pwede ko sila maka usap in person so I can apologize and talk to them properly. They refused po saying they can't and blaming me na iniipit ko sila. They said na they will reconsider my resignation by January I said I can't wait until January. And sabi nila may 1 year contract daw kami but I checked the contract before i filed my resignation and wala naman naka indicate, sabi niya if wala daw sa contract alam niya daw na sinabi niya yun VERBALLY. Sabi niya breach of contract daw. And they refused to give me my last pay which is yung 9 days na pinasok ko prior.

Sabi niya "If hindi mo kame masusunod simula bukas wag kana pumasok pero wala kana makukuha na sahod bigay mo nlang susi kay **** yan nman ang desisyon ko. Dahil sa desisyon mo hindi mo kame na consider as good employer sayo na sana fair yung desisyon mo so in this case we have consequences nalang."

We also have a 13th month pay in the contract which were not included in the first contract they gave me. Talagang tinanong ko kung wala talaga 13th month and they said na meron.

We are paid 100-150 pesos regardless of the overtime we rendered. Like this one instance sa bridal fair. We were paid an additional 150 pesos (our call time was 4am para bumyahe to makati we arrived sa makati ng 6 to 7am and note na may photobooths din so we were asked to carry some of the heavy items inshort naging kargador po kami 2 kaming babae and after that nag start yung fair ng 9am to 10pm-ish). We were shocked but accepted it anyway bcs we needed the money.

Nagpasa na ko sa dole but i did not say the last part, may conference na kami ng dec 17 to 22.

I'm a 20 year old shs graduate and this is my first time experiencing this. I started working at 18 and my first work ended in good terms.