Breeze blocks (Parkside SK7)

Hi we were scammed by a dodgy builder and now trying to finish a project with no funds and a short fall in materials. Does anyone have any breeze blocks or other materials that we could have to try and make do to finish off the garden for our kids. We are literally at breaking point and appreciate any help. If you have even a few breeze blocks or any pea gravel or mot or builders sand we could collect. I'd be so grateful to hear from you, don't understand the usefulness of small amounts. We have been gifted 28 blocks and only need another 22 to finish things off. Can collect from most of greater Manchester.