Storage/ moving boxes (Hanworth RG12)

4 of these each 37 cm x 37 cm xv24 cm.. We get 1 of these every 2cwerks with a frozen dog food delivery and they don't want them back. Too good by to break up and take to the tip but that's what will happen if nobody wants them asvthry take up a lot of space. Please indicate when you can collect be when replying.