submitBid() {
    if(this.isDrizzleInitialized) {
        const bidContractMethod = this.drizzleInstance.contracts[this.contractName].methods['bid'];
        bidContractMethod.cacheSend(this.parameter, { value: this.bidInWei });
    } else {
        alert("Drizzle doesn't seem to be initialised / ready");
    }
}