"It's a critical part of the community and it's tragic that we're in this position. It's important to build it back up."
Mr Bond said it was a pleasure to contribute to the cause and he challenged other banks to do the same.
"We can pull together as a community and put it on its feet again," he said.
Marketing manager Vicky Thompson said the bank had been talking about doing something for the SPCA for some time.
"And when we saw the story with Peter Rewi, we thought we should get in behind it."
She said WBS, which was established in 1885, returned 95 per cent of its income back into the community.
"We're making sure that the local community benefits and it doesn't go somewhere like Auckland or offshore."
SPCA Op Shop volunteer Ross Nixon said business at the store had "taken off" over the past week. "It's like someone's lit a fire-cracker."
He said the shop was solely focused on fundraising the necessary money to see SPCA services back in Wairarapa as soon as possible.