Fast Fulfillment Stores via Walmart offers the Proraso 5.2-oz. Shaving Soap in a Bowl for Sensitive Skin for $6.99 with free shipping. Outside of the seller below, that's the lowest price we could find by $3.
A close price, Healthcareplus1 via eBay offers it for $7.49 with free shipping.
With these companies, it might be easier than you think to negotiate your monthly bill down.