I've been using this survey website for like 2 months and I only have $25 saved up and you can redeem an Amazon gift card with that amount but you can get a prepaid visa card if you save up $50 so my plan is to get a crappier binder on Amazon for now and then save up for a prepaid visa so I can buy a better one. Can you recommend a good one that binds well. It's okay if it's more painful than others or unsafe for long durations. It's just important that it binds well. I have a really big chest and this is only temporary until I can afford better quality.

You can buy Underworks products on Amazon. I don't see anything from GC2B. These are the only two companies I would recommend buying binders from, especially if you have a large chest.

The first item that popped up when I did a search for Underworks was this one, which is under $25:

http://www.amazon.com/Underworks-Microfiber-Compression-Medium-Black/dp/B001DLGWKM/ref=sr_1_1?ie=UTF8&qid=1429307798&sr=8-1&keywords=underworks

underworks you are looking at around $35 plus shipping.  That link is a compression shirt not a binder.

Apologies OP, Julian is right. This looks like the cheapest Underworks binder on Amazon:

http://www.amazon.com/Underworks-Extreme-Gynecomastia-Binder-V-Tank/dp/B008FFCZDC/ref=sr_1_1_mc?s=apparel&ie=UTF8&qid=1429362140&sr=1-1&keywords=underworks+binder

As to the other part of your post, I personally wouldn't waste my money on a crappy binder as a placeholder for a good one. Tell your parents you need a new sports bra, get one that fits but is on the small side. Bonus points if it has an adjustable clasp on it. Then just layer shirts until you're flatter.

See if anyone you know has an Amazon Prime account. That would at least cut down on your shipping costs.

If you want one that will be good for a few months I'd reccomemd those Asian ones you see all over the place
They take longer to ship and the binders aren't the best quality but you can get them for around 10-25 bucks. http://www.amazon.com/gp/aw/d/B00ENZ63LS/ref=mp_s_a_1_sc_2?qid=1429654678&sr=8-2-spell&pi=AC_SX110_SY165_QL70&keywords=ftm+bunders this is the first binder I ever bought and it lasted a little over a year. However it is very uncomfortable and hot to wear underneath a shirt.

I'd be worried about the sizing on those ones if OP has a large chest. All the models are teeny tiny.