Hey, I am not sure why people are bidding at this low budget. I see you have mentioned several work.
Which are
Letterhead, business cards, postcards, social media design for fb, tw, IG, ln.
Well I can do all of those but the budget you have mention wont go with me. I would love to do all of these work. I can give you one stop solutioni on Graphics and Digital Marketing. As you have asked for several service that you will be needing. I can offer individual task and bid for that please inbox. I am putting the work that I will be providing you and my expectation for that in this bid. If you need less or more do inbox me to have a detail conversation.
1: Letterhead (2 concept)
2: Business card (2 concept for business card)
3: Post card (1 post card)
4: Letterhead, business cards, postcards, social media design for fb, tw, IG, ln.
< this will take time and good effort.