diff --git a/app/components/multisigwallet/confirmation.js b/app/components/multisigwallet/confirmation.js
index d6b71c2..ed98cda 100644
--- a/app/components/multisigwallet/confirmation.js
+++ b/app/components/multisigwallet/confirmation.js
@@ -42,10 +42,10 @@ class MSWConfirmation extends React.Component {
 
         try {
 
-            const toSend = accountConfirmed ? mswInstance.methods.revokeConfirmation(transactionId) : mswInstance.methods.confirmTransaction(transactionId);
-            const estimatedGas = await toSend.estimateGas({from: web3.eth.defaultAccount});
+            const toSend = accountConfirmed ? this.state.mswInstance.methods.revokeConfirmation(transactionId) : this.state.mswInstance.methods.confirmTransaction(transactionId);
+            const estimatedGas = await toSend.estimateGas({from: this.state.account});
             const receipt = await toSend.send({
-                from: web3.eth.defaultAccount,
+                from: this.state.account,
                 gasLimit: estimatedGas
             });
 
diff --git a/app/components/multisigwallet/owner-add.js b/app/components/multisigwallet/owner-add.js
index 8dce4d4..0017986 100644
--- a/app/components/multisigwallet/owner-add.js
+++ b/app/components/multisigwallet/owner-add.js
@@ -45,8 +45,8 @@ class MSWAddOwner extends React.Component {
 
             const toSend = this.state.mswInstance.methods.addOwner(input.owner);
 
-            const MsSend = this.state.mswInstance.submitTransaction(
-                this.state.mswInstance._address, 0, toSend.encodeABI
+            const MsSend = this.state.mswInstance.methods.submitTransaction(
+                this.state.mswInstance._address, 0, toSend.encodeABI()
             )
             const estimatedGas = await MsSend.estimateGas({from: this.state.account});
 
diff --git a/app/components/multisigwallet/owner-table.js b/app/components/multisigwallet/owner-table.js
index 17e2ebd..ec7bedb 100644
--- a/app/components/multisigwallet/owner-table.js
+++ b/app/components/multisigwallet/owner-table.js
@@ -30,8 +30,8 @@ class MSWOwnerTable extends React.Component {
         try {
 
             const toSend = this.state.mswInstance.methods.removeOwner(account);
-            const MsSend = this.state.mswInstance.submitTransaction(
-                this.state.mswInstance._address, 0, toSend.encodeABI
+            const MsSend = this.state.mswInstance.methods.submitTransaction(
+                this.state.mswInstance._address, 0, toSend.encodeABI()
             )
             const estimatedGas = await MsSend.estimateGas({from: this.state.account});