Request tokens when acct balance is low

go.mod

@@ -6,22 +6,22 @@ require (
 	github.com/adlio/schema v1.2.3 // indirect
 	github.com/arnaucube/go-blindsecp256k1 v0.0.0-20211204171003-644e7408753f
 	github.com/cockroachdb/apd v1.1.0 // indirect
-	github.com/ethereum/go-ethereum v1.10.13
-	github.com/frankban/quicktest v1.14.0
+	github.com/ethereum/go-ethereum v1.10.16
+	github.com/frankban/quicktest v1.14.2
 	github.com/google/uuid v1.3.0
 	github.com/jackc/fake v0.0.0-20150926172116-812a484cc733 // indirect
 	github.com/jackc/pgx v3.6.2+incompatible
 	github.com/jmoiron/sqlx v1.2.1-0.20200615141059-0794cb1f47ee
 	github.com/lib/pq v1.10.4
-	github.com/prometheus/client_golang v1.12.0
+	github.com/prometheus/client_golang v1.12.1
 	github.com/rubenv/sql-migrate v0.0.0-20200616145509-8d140a17f351
 	github.com/shopspring/decimal v0.0.0-20200227202807-02e2044944cc // indirect
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.10.1
-	github.com/vocdoni/blind-csp v0.1.5-0.20220210194521-a3f74fc97b11
-	go.vocdoni.io/dvote v1.0.4-0.20220217122656-84781e12453d
+	github.com/vocdoni/blind-csp v0.1.5-0.20220214165159-4620baa07fa4
+	go.vocdoni.io/dvote v1.0.4-0.20220323145555-39972bdf3a36
 	go.vocdoni.io/proto v1.13.3-0.20220203130255-cbdb9679ec7c
-	golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce
+	golang.org/x/crypto v0.0.0-20220214200702-86341886e292
 	google.golang.org/protobuf v1.27.1
 )